Once they are no longer competent, they are stuck in that role until they leave or retire.

Therefore, most jobs are occupied by a substandard employee.

Well. That explains a lot.

Joe in accounts was good at a job once, years ago. And then he got a promotion and it was the worst thing that ever happened to him.

It’s the fundamental paradox of the workplace: You are rewarded for being good at the job you are in, by being given an entirely different job.

Teachers are promoted to Principal – ultimately spending less time with students. Writers are promoted to Editor – meaning they spend less time writing. Nurses are promoted to management roles – meaning they spend less time with patients. The same goes for careers in hospitality or law or retail.